/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package javax.websocket;

public abstract class Endpoint {

	/**
	 * Event that is triggered when a new session starts.
	 *
	 * @param session The new session.
	 * @param config  The configuration with which the Endpoint was
	 *                configured.
	 */
	public abstract void onOpen(Session session, EndpointConfig config);

	/**
	 * Event that is triggered when a session has closed.
	 *
	 * @param session     The session
	 * @param closeReason Why the session was closed
	 */
	public void onClose(Session session, CloseReason closeReason) {
		// NO-OP by default
	}

	/**
	 * Event that is triggered when a protocol error occurs.
	 *
	 * @param session   The session.
	 * @param throwable The exception.
	 */
	public void onError(Session session, Throwable throwable) {
		// NO-OP by default
	}
}
